Specialist Software Engineer (Frontend)

Description

Job Summary: Responsible for designing, developing, and maintaining complex web applications using React, serving as a technical reference and ensuring code quality and performance. Key Highlights: 1. Collaborative and relaxed culture focused on innovation and evolution 2. Career development opportunities with autonomy and support 3. Focus on building robust and secure solutions Unico is the world's largest identity verification network and a cornerstone of trust in the digital society. With solutions based on facial biometrics, machine learning, and enhanced security layers, we authenticate with 100% certainty who is performing a transaction and the associated identity risks. Thus, our solutions combat fraud, protect data, and foster trust among individuals, businesses, and governments—contributing to building a safer, less bureaucratic world. To achieve this, we invest above all in our people, who form an incredible team committed to this great mission. So, are you ready to join us? **Our Culture** Our values form the foundation of everything we do! At Unico, we act without boundaries; create impact directly; remain transparent even in difficult situations; demonstrate resilience and adaptability to evolve; do the right thing, the right way; and boldly lead the construction of the future. Our work environment is relaxed and collaborative, full of learning opportunities and possibilities for you to develop your career with autonomy and support from leaders and colleagues. **Your Responsibilities:** * **Architecture and Development:** Design, develop, and maintain complex, scalable, and high-performance web applications using React. * **Technical Leadership:** Serve as the technical reference for the frontend team, guiding developers at various seniority levels on architectural decisions and best practices. * **Code Quality:** Ensure code quality through rigorous code reviews, implementation of automated tests (unit, integration, and E2E), and promotion of a culture of technical excellence. * **Performance and Optimization:** Identify and resolve performance bottlenecks, ensuring our applications are fast and responsive. * **Security:** Implement frontend security best practices to protect our users and data against common vulnerabilities. * **Collaboration:** Collaborate with Product Managers, Designers, and other Engineers to translate business requirements and designs into robust technical solutions. * **Innovation:** Research, prototype, and recommend adoption of new technologies and tools that can enhance our tech stack and development processes. **What We Require:** * Solid experience with JavaScript (ES6\+), TypeScript, CSS, and frameworks such as React (Hooks, Context API, etc.), Angular, or Vue.js. * Advanced knowledge of state management in React applications (e.g., Redux, Zustand, React Query, etc.). * Experience optimizing web performance (Web Vitals). * Familiarity with design systems and interface componentization. * Familiarity with frontend automated testing (e.g., Jest and React Testing Library). * Familiarity with CI/CD practices and deployment pipelines. * Solid understanding of frontend security principles. **Nice-to-Have Qualifications:** * Experience with infrastructure-as-code tools: Ansible, Terraform, Packer. * Advanced/fluent English. **Discover the Benefits of Becoming a Ser Unico** **Flexible Benefit:** R$1\.500,00 per month, distributable across VA/VR, Culture, Mobility, and Flex Vacation modalities; **Remote Work Allowance:** Monthly amount of R$ 120,00 to cover utility bills and consumption; **Profit Sharing (PLR):** Eligible for Profit and Results Sharing per collective bargaining agreement; **Education Benefit:** Unico fully funds 100% of studies for 100% of employees via courses available on the Unico Skill platform. You may choose from undergraduate, graduate, MBA, language, specialized courses, and mentoring programs; **Well-being:** Access to platforms such as Gympass and Totalpass; **Extended Parental Leave:** 180 days for pregnant individuals and primary caregivers in adoption processes, and 60 days for non-pregnant individuals and secondary caregivers in adoption processes—with full salary and benefits paid throughout the entire period. **Work Location** We adopt a remote-first work model, our \#tetounico. This means team members may optionally visit offices when desired and according to each area’s needs. We have offices in São Paulo and Londrina. **And More…** We offer a structured career path aligned with your competencies and interests—providing growth opportunities either as a specialist or leader—while encouraging your personal and professional development through semiannual performance evaluations (with structured feedback and individual development plans); To complete your experience, we host talks, meetups, workshops, trainings, birthday day-offs, Wednesday reunioffs, internal/external parties and celebrations, biweekly in-person happy hours, affinity groups, and workplace gymnastics. **Diversity & Inclusion** At Unico, we are committed to building an inclusive culture and welcome applications from all individuals regardless of ethnicity, gender, sexual orientation, political affiliation, religion, disability, origin, or any other characteristic. We are building an inclusive workplace and, to support better practices, we created the Diversity & Inclusion form. We invite you to complete it to help us in this process—but please note you may opt out without impacting your evaluation. Sharing this information will not affect your performance in the selection process and will be used solely for developing inclusion strategies. **Want to Learn More About Unico?** Watch our manifesto; Follow us on social media: LinkedIn and Instagram I acknowledge that, before applying, I have read the Candidate Privacy Notice, available at: Unico Candidate Privacy Notice \| Privacy \- Internal Use We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.